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New study reveals how the lung’s immune cells develop after birth

January 12, 2022


From our first breath, our lungs are exposed to microorganisms, such as bacteria and viruses. Thanks to immune cells in the lungs, so-called macrophages, we are protected from most infections at an early age. In a new study published in the Journal of Experimental Medicine, researchers from Karolinska Institutet show how lung macrophages develop; new findings that can help to reduce organ damage and that are significant for the continued development of important lung disease treatments.

Lung macrophages begin to develop in humans from birth when the lungs are first inflated with inhaled air.

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